Spawning iterms within a radius?

Hello ladies and gentlemen.
I was wondering how I create objects spawn within a radius.

As an example
I have a cube 5x1x1
I want to have objects spawn inside the objects size.
I hope you understand what I mean.

 

If it doesnt need to be a cube you can use

Code (csharp):

1. Random.insideUnitSphere

or

Code (csharp):

1. Random.insideUnitCircle

for a cube you need to do somethink like

Code (csharp):

1.  
2. //Pseudocode
3. x = Random.Range(0f, cube.extends.x);
4. // same for y and z
5.  
6. transform.position = new Vector3(x, y, z);
7.  

I have a spawning script somewhere around here. If you want I can post it

 

If you would be that kind , thank you.

 

It is quit old and there are maybe some nooby mistakes in it .

SpawnArea.cs

Code (csharp):

1.  
2. // place this on an empty GameObject
3. // the radius is defined by the GameObjects scale
4. using UnityEngine;
5. using System.Collections;
6.  
7. public class SpawnArea: MonoBehaviour {
8.     // Array of Mobs
9.     public GameObject[] mobs;
10.  
11.     public int totalMobsPosible = 2;
12.     public int mobsInArea;
13.     public LayerMask groundLayer;
14.    
15.    
16.     // Spawn Are Radius (set by Scale)
17.     private float SpawnRadius = 10f;
18.     // Color for Girmo Cyrcle
19.     private Color _gizmoColor = Color.red;
20.    
21.     // cached transform
22.     private Transform tr;
23.    
24.     void Awake(){
25.         tr = gameObject.transform;
26.     }
27.    
28.     void Update(){
29.         SetRadius();
30.     }
31.    
32.    
33.     public void Spawn(){
34.         mobsInArea++;
35.         GameObject clone = GetRandomMob();
36.         clone = Instantiate(mobs[0], GetPosition(), Quaternion.identity) as GameObject;
37.         clone.GetComponent<AI>().mySpawnArea = GetComponent<SpawnArea>();
38.        
39.         // set the Y coordinate to y + the half height of the CharacterController
40.         float height = (float)(clone.GetComponent<CharacterController>().height * 0.5);
41.         clone.transform.position = new Vector3(clone.transform.position.x, clone.transform.position.y + height, clone.transform.position.z);
42.        
43.     }
44.    
45.     // get a random position inside the Spawn Area
46.     public Vector3 GetPosition(){
47.         Vector2 posInCyrcle = Random.insideUnitCircle * SpawnRadius;
48.         Vector3 position = new Vector3(posInCyrcle.x + tr.position.x, 10000, posInCyrcle.y + tr.position.z);
49.         RaycastHit hit;
50.        
51.         if(Physics.Raycast(position, -Vector3.up, out hit, Mathf.Infinity, groundLayer)){
52.             position.y = hit.point.y;
53.         }else
54.             position.y = transform.position.y;
55.         return position;
56.  
57.     }
58.    
59.     // get a random Mob and returns it
60.     private GameObject GetRandomMob(){
61.         return mobs[Random.Range(0, mobs.Length)];
62.     }
63.    
64.     private void SetRadius(){
65.         SpawnRadius = (tr.localScale.x * tr.localScale.y * tr.localScale.z) / 3;
66.     }
67.    
68.     void OnDrawGizmos () {
69.         tr = gameObject.transform;
70.         SetRadius();
71.        
72.         Vector3 currentWaypoint = transform.position;
73.        
74.         Debug.DrawLine (transform.position, currentWaypoint, _gizmoColor);
75.        
76.         Vector3 pP = currentWaypoint + SpawnRadius * new Vector3 (1,0,0);
77.         for (float i = 0; i < 2 * System.Math.PI; i+= 0.1F) {
78.             Vector3 cP = currentWaypoint + new Vector3 ((float)System.Math.Cos (i)*SpawnRadius,0,(float)System.Math.Sin(i)*SpawnRadius);
79.             Debug.DrawLine (pP,cP, _gizmoColor);
80.             pP = cP;
81.         }
82.         Debug.DrawLine (pP, currentWaypoint + SpawnRadius*new Vector3 (1,0,0), _gizmoColor);
83.     }
84.    
85. }
86.  
87.  

SpawnManager .cs

Code (csharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4.  
5. public class SpawnManager : MonoBehaviour {
6.    
7.     public float refreshRate = 2.0f;
8.     public int maxIteration = 3;
9.     public SpawnArea[] _spawnAreas;
10.    
11.     private float _counter;
12.    
13.     void Start () {
14.         _counter = refreshRate;
15.         _spawnAreas = FindObjectsOfType(typeof(SpawnArea)) as SpawnArea[];
16.     }
17.    
18.     // Update is called once per frame
19.     void Update () {
20.         _counter += Time.deltaTime;
21.        
22.         if(_counter >= refreshRate){
23.             _counter -= refreshRate;
24.             for(int i = 0; i < _spawnAreas.Length; ++i){
25.                 for(int x = 0; x <= maxIteration; ++x){
26.                     if(_spawnAreas[i].mobsInArea < _spawnAreas[i].totalMobsPosible){
27.                     _spawnAreas[i].Spawn();
28.                     }
29.                 }
30.             }          
31.         }
32.     }
33.    
34.    
35.    
36. }